enum GdkPixbufError

typedef enum {
        /* image data hosed */
        GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
        /* no mem to load image */
        GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
        /* bad option passed to save routine */
        GDK_PIXBUF_ERROR_BAD_OPTION,
        /* unsupported image type (sort of an ENOSYS) */
        GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
        /* unsupported operation (load, save) for image type */
        GDK_PIXBUF_ERROR_UNSUPPORTED_OPERATION,
        GDK_PIXBUF_ERROR_FAILED
} GdkPixbufError;

GDK_PIXBUF_ERROR

#define GDK_PIXBUF_ERROR gdk_pixbuf_error_quark ()

enum GdkColorspace

typedef enum {
	GDK_COLORSPACE_RGB
} GdkColorspace;

enum GdkPixbufAlphaMode

typedef enum
{
        GDK_PIXBUF_ALPHA_BILEVEL,
        GDK_PIXBUF_ALPHA_FULL
} GdkPixbufAlphaMode;

GdkPixbuf

typedef struct _GdkPixbuf GdkPixbuf;

gdk_pixbuf_get_colorspace ()

GdkColorspace       gdk_pixbuf_get_colorspace           (const GdkPixbuf *pixbuf);

Queries the color space of a pixbuf.

gdk_pixbuf_get_n_channels ()

int                 gdk_pixbuf_get_n_channels           (const GdkPixbuf *pixbuf);

Queries the number of channels of a pixbuf.

gdk_pixbuf_get_has_alpha ()

gboolean            gdk_pixbuf_get_has_alpha            (const GdkPixbuf *pixbuf);

Queries whether a pixbuf has an alpha channel (opacity information).

gdk_pixbuf_get_bits_per_sample ()

int                 gdk_pixbuf_get_bits_per_sample      (const GdkPixbuf *pixbuf);

Queries the number of bits per color sample in a pixbuf.

gdk_pixbuf_get_pixels ()

guchar *            gdk_pixbuf_get_pixels               (const GdkPixbuf *pixbuf);

Queries a pointer to the pixel data of a pixbuf.

gdk_pixbuf_get_width ()

int                 gdk_pixbuf_get_width                (const GdkPixbuf *pixbuf);

Queries the width of a pixbuf.

gdk_pixbuf_get_height ()

int                 gdk_pixbuf_get_height               (const GdkPixbuf *pixbuf);

Queries the height of a pixbuf.

gdk_pixbuf_get_rowstride ()

int                 gdk_pixbuf_get_rowstride            (const GdkPixbuf *pixbuf);

Queries the rowstride of a pixbuf, which is the number of bytes between the start of a row and the start of the next row.

gdk_pixbuf_get_option ()

const gchar *       gdk_pixbuf_get_option               (GdkPixbuf *pixbuf,
                                                         const gchar *key);

Looks up key in the list of options that may have been attached to the pixbuf when it was loaded, or that may have been attached by another function using gdk_pixbuf_set_option().

For instance, the ANI loader provides "Title" and "Artist" options. The ICO, XBM, and XPM loaders provide "x_hot" and "y_hot" hot-spot options for cursor definitions. The PNG loader provides the tEXt ancillary chunk key/value pairs as options. Since 2.12, the TIFF and JPEG loaders return an "orientation" option string that corresponds to the embedded TIFF/Exif orientation tag (if present).

The "bits-per-sample" property

  "bits-per-sample"          gint                  : Read / Write / Construct Only

The number of bits per sample. Currently only 8 bit per sample are supported.

Allowed values: [1,16]

Default value: 8

The "colorspace" property

  "colorspace"               GdkColorspace         : Read / Write / Construct Only

The colorspace in which the samples are interpreted.

Default value: GDK_COLORSPACE_RGB

The "has-alpha" property

  "has-alpha"                gboolean              : Read / Write / Construct Only

Whether the pixbuf has an alpha channel.

Default value: FALSE

The "height" property

  "height"                   gint                  : Read / Write / Construct Only

The number of rows of the pixbuf.

Allowed values: >= 1

Default value: 1

The "n-channels" property

  "n-channels"               gint                  : Read / Write / Construct Only

The number of samples per pixel. Currently, only 3 or 4 samples per pixel are supported.

Allowed values: >= 0

Default value: 3

The "pixels" property

  "pixels"                   gpointer              : Read / Write / Construct Only

A pointer to the pixel data of the pixbuf.

The "rowstride" property

  "rowstride"                gint                  : Read / Write / Construct Only

The number of bytes between the start of a row and the start of the next row. This number must (obviously) be at least as large as the width of the pixbuf.

Allowed values: >= 1

Default value: 1

The "width" property

  "width"                    gint                  : Read / Write / Construct Only

The number of columns of the pixbuf.

Allowed values: >= 1

Default value: 1